Finding the Fourth Proportional to 878,400.16, 1,212,192.84 and 475,992.16
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Solution
The fourth proportional to 878,400.16, 1,212,192.84 and 475,992.16 is: 656,869.52
Step by Step Solution
- Step 1: Write the proportion equation
878,400.16 : 1,212,192.84 = 475,992.16 : x - Step 2: Convert to fraction form
878,400.16/1,212,192.84 = 475,992.16/x - Step 3: Cross multiply
878,400.16x = 1,212,192.84 × 475,992.16 - Step 4: Simplify right side
878,400.16x = 576,994,288,248.13 - Step 5: Solve for x
x = 576,994,288,248.13/878,400.16 - Step 6: Final answer
x = 656,869.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.